Direct flights to Seoul | Cheapflights

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Best

Last-minute

One-way

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 19 August 2026.

Sat 29/802:25 -

Nonstop5h 35m

Mon 31/820:05 -

Nonstop6h 05m

Deal found 16/8฿8,862

Wed 2/900:05 -

Nonstop5h 35m

Fri 4/917:15 -

Nonstop5h 55m

Deal found 17/8฿8,895

Thu 27/802:25 -

Nonstop5h 35m

Mon 31/812:10 -

Nonstop5h 50m

Deal found 14/8฿8,928

Fri 28/802:25 -

Nonstop5h 35m

Tue 1/920:05 -

Nonstop6h 05m

Deal found 17/8฿8,961

Thu 3/922:45 -

Nonstop5h 30m

Fri 4/917:15 -

Nonstop5h 55m

Deal found 17/8฿8,994

Sat 29/802:25 -

Nonstop5h 35m

Thu 3/920:05 -

Nonstop6h 05m

Deal found 17/8฿9,027

Mon 31/800:05 -

Nonstop5h 35m

Fri 4/917:15 -

Nonstop5h 55m

Deal found 17/8฿9,060

Tue 1/922:45 -

Nonstop5h 30m

Fri 4/917:15 -

Nonstop5h 55m

Deal found 14/8฿9,093

Wed 2/900:05 -

Nonstop5h 35m

Wed 9/920:05 -

Nonstop6h 05m

Deal found 17/8฿9,126

Sun 25/1002:30 -

Nonstop5h 35m

Fri 30/1011:20 -

Nonstop6h 10m

Deal found 14/8฿9,159

Sat 29/802:25 -

Nonstop5h 35m

Sun 6/912:10 -

Nonstop5h 50m

Deal found 17/8฿9,159

Sat 29/802:25 -

Nonstop5h 35m

Thu 10/920:05 -

Nonstop6h 05m

Deal found 17/8฿9,193

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.

TH1-SEL

BKK-ICN

DMK-ICN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 23/9

00:05-07:40

Nonstop5h 35m

Incheon Intl

Mon 28/9

18:00-22:05

Nonstop6h 05m

฿9,292

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Sat 12/9

00:05-07:40

Nonstop5h 35m

Incheon Intl

Wed 16/9

18:00-22:05

Nonstop6h 05m

฿9,292

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Wed 14/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Fri 23/10

12:05-15:50

Nonstop5h 45m

฿10,052

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Thu 15/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Wed 21/10

12:05-15:50

Nonstop5h 45m

฿10,317

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 1/10

00:05-07:40

Nonstop5h 35m

Incheon Intl

Sat 10/10

18:00-22:05

Nonstop6h 05m

฿10,317

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Tue 6/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Sun 11/10

12:05-15:50

Nonstop5h 45m

฿10,912

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Thu 1/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Sat 10/10

12:05-15:50

Nonstop5h 45m

฿11,540

Fastest return journey

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 7/10

02:25-10:00

Nonstop5h 35m

Incheon Intl

Mon 12/10

12:10-16:00

Nonstop5h 50m

฿12,169

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Thu 19/11

02:30-10:05

Nonstop5h 35m

Incheon Intl

Wed 25/11

11:20-15:30

Nonstop6h 10m

฿12,631

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Sun 18/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Fri 18/12

11:20-15:30

Nonstop6h 10m

฿13,028

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 39 resultsSorted by cheapest first

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Reviews of airlines flying non-stop to Seoul

Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

8.4

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

AIR PREMIA

8.1

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

7.9

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Thai Vietjet Air

6.7

Okay

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

How much are direct flights to Seoul?
On average, a one-way direct flight to Seoul will cost users approximately ฿7,275. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿28,325.
Which airlines fly direct to Seoul?
At the moment, Thai AirAsia X, Thai Vietjet Air, Korean Air, Thai Airways, AIR PREMIA, T'way Air, Asiana Airlines, Eastar Jet, Thai Lion Air, Jeju Air offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.
What is the best time of year to fly direct to Seoul?
If you're seeking the lowest price on a direct flight to Seoul, February is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.
What is the most popular direct flight origin to Seoul?
Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿25,779.

See more FAQs

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